I was wandering around Michaels Craft store and found something that will work for attys,and another size can transport Yer Batteries right in Yer pocket,Coin holders! I got a pack of the nickel size and a pack of Quarter sized for those that have two or more Tank/RDA with different juices....No more frying Yer extra batteries in Yer pocket!....And no more drippy spots on Yer shirt pocket....They were only $3.50 for a pack of five,They are Stay- clear Acid free plastic and have a screw cap to close....Z